350-lb weight capacity. Crutches will work for young people ranging in height from 4'6" to 5'2".. Lighter than wood, the standard aluminum crutch provides stability and durability.. Double-extruded center tube provides additional strength to weight-bearing area.. Pushpin adjustment makes it easy-to-adjust crutch height in 1-inch increments.. Non-skid, jumbo-size vinyl contoured tips provide excellent traction.. Easy wing nut adjustments for hand grips. . WARNING: This product can expose you to bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.